feat: add endpoint to retrieve amendment workshops by institution contract ID

ServiceHost/Areas/Admin/Controllers/institutionContractController.cs

@@ -512,6 +512,13 @@ public class institutionContractController : AdminBaseController
         var res =await _institutionContractApplication.ExtensionComplete(request);
         return res;
     }
+    
+    [HttpGet("amendment/workshops/{institutionContractId}")]
+    public async Task<ActionResult<InstitutionContractAmendmentWorkshopsResponse>> GetAmendmentWorkshops(long institutionContractId)
+    {
+        var res =await _institutionContractApplication.GetAmendmentWorkshops(institutionContractId);
+        return res;
+    }
 }